Recording-lock.



F. B. BBNZING.

RECORDING LOOK.

APPLICATION FILED 0012.16, 1911.

Q 1,037,108, Patented Aug. 27, 1912.

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u'munnm PLANDCIRAPH c0 WASHINGTON. D c.

P. E. BENZING.

RECORDING LOOK.

APPLIOATION FILED OUT. 16, 1911.

1 037 1()8 Patented Aug. 27, 1912.

2 SHEETS-SHEET 2.

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FRIEDRICH ERNST BENZING, OF SCHWENNINGEN, GERMANY.

RECORDING-LOCK.

Specification of Letters Patent.

Patented All". 27, 1912.

Application filed October 16, 1911. Serial No. 654,968.

To all whom it may concern:

Be it known that I, FRInDRrcn ERNST BENZING, a subject of the GermanEmperor,

and resident of Schwenningen, lVurttemberg, Germany, have inventedcertain new and useful Improvements in Recording- Locks, of which thefollowing is a specification.

This invention relates to a recording lock for shop, o'llice and thelike doors which contains a device which automatically and separatelyregisters the days, the hour and the minute of every opening and closingof the door provided with the recording lock. The printing mechanism ofthis recording lock is combined in such a manner with a lock bolt and aclock work that when the key is rotated in the lock and reciprocates thelock bolt, the latter while moving to the left and the right causes aninking roller to be moved over a paper ribbon or band which rests ontype wheels which are independent of the clock work. The motions of thelock bolt produce besides before each printing operation the advancingmotion of the paper ribbon so that the same place of the latter cannotbe printed upon.

The accompanying drawing given by way of example shows one form ofembodiment of the invention and in this drawing:

Figure 1 is a front elevation of the recording or time indicating lockapplied to a door, the bolt being pulled back; Fig. 2 is a horizontalpartial section on line AA (Fig. 1) which shows the guides of the.inking roller; Fig. 3 is a horizontal partial sectional View taken online =BB of Fig. 1, this section showing the holding pawls for thecarrying arm of the inking roller; Fig. 4 is a horizontal partialsectional View taken on line G-C (Fig. 1) and showing those parts of thelock which cause the advancing motion of the paper band.

Provided on the outside of one of the two plates 1 of a clock-workcasing are two guides 2, in which a lock bolt 3 moves which carries twoabutments 41, adapted to be actuated by the key which is slid over thepin 5, the latter being secured in the casing. Secured to the lower sideof the guides 2 and parallel to the lock bolt 3 is a rod 6, on

which sliding members 7 are mounted against which the heels 8, carriedby the lock bolt 3, are adapted to abut. The said sliding members 7serve, when they are shifted by the lock bolt through theinstrument-ality of the heels 8, to put the coiled springs 9 undertension, these springs being pivotally connected at one of their endswith an eye 10 of the sliding members 7 and at their other ends with acommon eye 11 carried by an arm 12, which is adapted to oscillate on apin 13 upon the casing 1 in a plane parallel to the plate of the latter.The arm 12 comprises two parts, hingedly connected together at 14 insuch a manner that it may move also in a vertical direction withreference to the plate 1 of the casing. This tilting motion of the arm12 is produced by the fact that its free end, which carries a smallroller 15, enters the slot 16 in a guide 17 (Figs. 1 and 2), which slothas a straight central part and end parts which are inclined to theplate 1 of the casing.

In the neighborhood of the guide 17 the arm 12 is provided with a bentpart 18 in which a roller 19 is supported, which roller is provided witha soft substance adapted to absorb coloring matter and which receivesthe coloring matter either from an inking pad or a suitable inkreceptacle which has been provided in the bent part- 18. Opposite thepath of motion of the roller 19., type wheels 20, 21, and 22 aresuitably supported, the first of said rollers carrying the figuresdesignating the days, the second those designating the hours and thethird those designating the minutes, all these figures being embossed soas to project from the roller. The two first named type wheels 21 and 22are concentrically arranged to each other.

The type wheels 20, 21 and 22 are arranged in such a manner that thoseof their figures, which are to be printed, are very close to each otherand that their rates of rotation are in the correct relation withreference to their different destination. The type wheels are rotated bya clockwork inclosed in the casing 1; this clockwork may be of anydesired construction and for this reason has not been shown on thedrawings. A paper ribbon passes between the type wheels and the printingroller 19, this paper ribbon being unrolled from a bobbin 23 and rolledon another bobbin 25. During this operation the paper strip or ribbonpasses under two guide pins 2-1 which hold it on the type wheels.

Before each registration or printing 'oper ation the paper strip isshifted the length of one registration or point, this shifting beingcarried out by means of the device described below.

The bobbin 25 is loosely mounted on its axis or shaft 30 and is providedat its lower end with a ratchet wheel 26, the teeth of which are engagedby a pawl 27 which is held depressed by a spring 28, and is ar ranged ona disk 29 which in turn is loosely mounted on the shaft 30 of the bobbin25. Secured to the outside of the disk 29 is a pinion 31 which mesheswith a toothed sector 32, the latter oscillating around a shaft 33,carried by a bracket 34 of the plate 1 of the casing, and has a tailpiece 35 which carries a finger 36 projecting into the-path of motion ofa cam 37 which is rigidly secured to the bolt 3. The abutting finger 36is held against the cam 37 by means of a spring 38. A. ratchet wheel 60is secured to the upper side of the bobbin 25, and is adapted to beengaged by a pawl 61 which prevents the bobbin from following thebackward motion of the disk 29, which backward motion is produced by thesector when the finger 36 of the latter moves along the other side ofthe cam 37.

The arrangement described above furthermore comprises two mechanisms,one of which serves to print the first letter of either one of the wordsLocked and Unlocked so that one may directly see from each registrationif the latter has been made when the look was opened or when. it wasclosed. The second one of said mechanisms has for its object to put atevery registration one of the springs 9 under tension and to store up inthis manner a sufficient amount of force for imparting a violent motionto the arm 12, which until then had been held immovable by the saidmechanism itself.

The letters which show if the door has been locked or unlocked, arecarried by a bar 39 which is guided by means of two screws 40, passingthrough slots 41. The bar 39 carries at its lower end a finger 42 whichhas the shape of a rod, which is first horizontally directed, thereafterrises obliquely and finally again projects horizontally. The finger 42projects between the ends of two screws 43 which pass through the lockbolt.

The second of the mechanisms cited above (Fig. comprises two pawls 44and 45, each of which is adapted to oscillate around a shaft 46 carriedby a bracket 47, which is positioned on the plate 1. The pawls 44 and 45are continuously pressed by springs 48 against the abutting pins 49 and50, secured to the lock bolt 3. The first named of said pins ispositioned under the pawl 44 while the other one is positioned above thepawl 45. The abutting pins 49 and 50 when moving produce an oscillatorymotion of the pawls 44 and 45 by sliding over the incline 51 of thelatter Owing to this oscillatory mot-ion that of the pawls 44 and 45which holds the arm 12 by means of its extension 52, sets this arm freeso that it may obey the tractional effort of the corresponding spring 9as this will be pointed out below, and may arrive behind the nose 52 ofthe other pawl, where by the printing of the registration is produced,while the arm adjusts itself in readiness for the following action.

When all the parts of the recording lock assume the positions shown inFig. 1, 2'. a. the opened position, if the key is slid on the pin 5 andis rotated, the bolt 3 moves toward the right and while so doing carrieswith it through the medium of its heel. or abutment 8 the left handsliding member 7 thus putting under tension the corresponding spring 9.The latter then remains in a state of tension until the arm 12 remainsengaged behind the shoulder 52 of the pawl 45, that is to say duringnearly the entire duration of the motion of the lock bolt. \Vhile theleft hand spring 9 is being put under tension, the abutting pin 36 hasclimbed on the cam 37 and has caused the bobbin 25 to rotate through themedium of the parts 32, 31, 29, 27 and 26, and as a consequence theregistering strip or ribbon has been advanced.

While these two operations were taking place, the two screws 43 whichmove together with the lock bolt 3 have acted upon the inclined part ofthe finger 42, and have thus forced the bar 39 to move the letter L(Locked) into its printing position while the pins 49 and 50 have on theone hand pressed down the pawl 45 and on the other hand pushed upwardthe pawl 44 so as to allow the arm 12 to move from the right to the leftunder the action of the spring which has been put under tension in themanner described above. During this motion the arm 9, owing to thespecial shape of the guide slot 16, has exerted a pressure on theletters and figures which at this time are juxtaposed on the way of theinking roller 19, so that during the said motion all the above citedindications have been printed and registered.

Having now fully described my said i11- vention, what T claim and desireto secure by Letters Patent, is:

1. In a lock of the kind described, the combination with a lock bolt, ofa printing mechanism comprising a set of type wheels indicating the day.hour and minutes, a clock work adapted to actuate said type wheels, aprinting arm, springs adapted to act upon the said printing arm and tocause it to move over the said types, means interposed between said boltand said springs to tension same by the motions of the bolt, a pawlmechanism adapted to lock the said printing arm in its extremepositions, means adapted to be actuated by the said lock bolt to releasethe said pawl mechanism, and

means for causing a paper ribbon to move a predetermined distance oversaid type wheels each time a registration has to be made, substantiallyas and for the purpose set forth.

2. In a lock of the kind described, the combination with a lock bolt, ofa printing mechanism comprising a set of type wheels indicating the day,hours and minutes, a clock work adapted to actuate said type wheels, aprinting arm composed of two parts hingedly connected together, aprinting roller carried by one of said lever parts, a guide slot adaptedto guide that part of said printing arm which carries the printingroller in such a manner that the roller comes into contact with a paperribbon at the eX- act spot which corresponds to the types of the typewheels which are to be printed, substantially as and for the purpose setforth.

3. In a lock of the kind described, the combination with a lock bolt, ofa printing mechanism comprising a set of type wheels indicating the day,hours and minutes, a clock work adapted to actuate said type wheels, aprinting arm, a printing rolier carried by said arm, a mechanism forconvert ing the slow motion of the lock bolt into a rapid motion of theprinting arm, this mechanism comprising two pawls adapted to hold thesaid printing arm at the end of its stroke, pins carried by the saidlock bolt and adapted to cause the said pawls to oscillate, springsconnected with said arm and the lock bolt, and means for tensioning thesaid springs by means oi the motion of said lock bolt, substantially asand for the purpose set forth.

In a lock device of the kind described,

the combination with a lock bolt, of a printing mechanism comprisingsets of type wheels indicating the day, the hours and the minutes,aclock work adapted to actuate the said type wheels, a printing levercarrying a printing roller and a mechanism adapted to indicate at everyregistration it the latter has been made when the door was opened orclosed, this mechanism comprising a rod carrying signs stating saidindications, a cam provided at the lower end of said rod, two pinscarried by said lock bolt and adapted to cooperate with said cam whenthe lock bolt is moved so as to bring one or the other sign of the saidrod in printing position, substantially as and for the purpose setforth.

5. In a lock device of the kind described, the combination with a lockbolt, of a printing device comprising type wheels, a clock work adaptedto actuate said type wheels, one of said type wheels carrying the typesindicating the days, while two others are concentrically ar anged toeach other and at the side of the first one and carry respec tively thetypes indicating the hours and the minutes, and a rod carrying printingsigns indicating if the door was opened or closed, this rod beingpositioned so that the signs carried by it appear between the day typewheel and the hour and minutes type wheels, substantially as and for thepurpose set forth.

In testimony whereof I have hereunto set my hand in presence of twowitnesses:

FRIEDRICH ERNST BENZING.

W'itnesses PAULINE KLAIBER, FKIDA KLAnsnn.

Copies 0! this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

